DE59506716D1 - Process for the chemical recycling of polycarbonates - Google Patents

Process for the chemical recycling of polycarbonates

Info

Publication number
DE59506716D1
DE59506716D1 DE59506716T DE59506716T DE59506716D1 DE 59506716 D1 DE59506716 D1 DE 59506716D1 DE 59506716 T DE59506716 T DE 59506716T DE 59506716 T DE59506716 T DE 59506716T DE 59506716 D1 DE59506716 D1 DE 59506716D1
Authority
DE
Germany
Prior art keywords
polycarbonates
chemical recycling
recycling
chemical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE59506716T
Other languages
German (de)
Inventor
Hans-Josef Buysch
Steffen Kuehling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Application granted granted Critical
Publication of DE59506716D1 publication Critical patent/DE59506716D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
    • C08J11/22—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/20—General preparatory processes
    • C08G64/30—General preparatory processes using carbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
DE59506716T 1994-06-21 1995-06-08 Process for the chemical recycling of polycarbonates Expired - Fee Related DE59506716D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19944421701 DE4421701A1 (en) 1994-06-21 1994-06-21 Process for the chemical recycling of polycarbonates

Publications (1)

Publication Number Publication Date
DE59506716D1 true DE59506716D1 (en) 1999-10-07

Family

ID=6521144

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19944421701 Withdrawn DE4421701A1 (en) 1994-06-21 1994-06-21 Process for the chemical recycling of polycarbonates
DE59506716T Expired - Fee Related DE59506716D1 (en) 1994-06-21 1995-06-08 Process for the chemical recycling of polycarbonates

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19944421701 Withdrawn DE4421701A1 (en) 1994-06-21 1994-06-21 Process for the chemical recycling of polycarbonates

Country Status (4)

Country Link
US (1) US5652275A (en)
EP (1) EP0688807B1 (en)
JP (1) JP3290054B2 (en)
DE (2) DE4421701A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6034142A (en) * 1997-12-12 2000-03-07 General Electric Company Method for recycling aromatic polycarbonates
US6642322B2 (en) 1998-01-21 2003-11-04 The University Of North Carolina At Chapel Hill Methods of making telechelic oligomers, methods of making block copolymers, and novel block copolymers
JP2001302573A (en) * 2000-04-27 2001-10-31 Victor Co Of Japan Ltd Method for recovering useful substance from waste plastic containing substantially polycarbonate resin
DE10142735A1 (en) * 2001-08-31 2003-03-20 Bayer Ag Process for using polycarbonates
EP1300432A1 (en) * 2001-10-04 2003-04-09 Teijin Limited Process for producing a polycarbonate and method of cleaning a production unit
US6525171B2 (en) 2001-10-04 2003-02-25 Teijin Limited Process for producing a polycarbonate and method of cleaning a production unit
CA2378922C (en) * 2002-01-16 2009-01-27 Rutgers, The State University Of New Jersey Compositions and methods of making plastic articles from polymer blends containing polyethylene
JP3967674B2 (en) * 2002-12-11 2007-08-29 日本ジーイープラスチックス株式会社 Recycling law of polycarbonate resin
US7838604B2 (en) * 2005-12-01 2010-11-23 Frx Polymers, Inc. Method for the production of block copolycarbonate/phosphonates and compositions therefrom
US7547799B1 (en) 2008-06-20 2009-06-16 Sabic Innovative Plastics Ip B.V. Method for producing phenolic compound
TW201439222A (en) 2013-01-22 2014-10-16 Frx Polymers Inc Phosphorus containing epoxy compounds and compositions therefrom
BR102016015868A2 (en) * 2016-07-07 2018-01-23 Universidade Estadual De Campinas - Unicamp PROCESS FOR OBTAINING HYDROXYL BISPHENOL A POLYCARBONATE A OLIGOMERS AND USE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD46353A (en)
DE46353C (en) * CH. SELDEN in Baltimore, Maryland, V. St. A Switching of the apparatus used when telegraphing and telephoning at the same time on the same line
DE4240314A1 (en) * 1992-12-01 1994-06-09 Bayer Ag Prepn of polycarbonate(s) by melt esterification, by degrading polycarbonate from di:phenol - using quat. ammonium or phosphonium cpd as catalyst, prepn. of oligo:carbonate and polycondensation
DE4312391A1 (en) * 1993-04-16 1994-10-20 Bayer Ag Process for the purification of polycarbonate and polyester carbonate solutions

Also Published As

Publication number Publication date
JPH083308A (en) 1996-01-09
JP3290054B2 (en) 2002-06-10
US5652275A (en) 1997-07-29
EP0688807B1 (en) 1999-09-01
EP0688807A1 (en) 1995-12-27
DE4421701A1 (en) 1996-01-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee